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首页> 外文期刊>Psychometrika >Cronbach’s α, Revelle’s β, and Mcdonald’s ω H : their relations with each other and two alternative conceptualizations of reliability
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Cronbach’s α, Revelle’s β, and Mcdonald’s ω H : their relations with each other and two alternative conceptualizations of reliability

机译：克伦巴赫（Cronbach）的α，雷维尔（Revelle）的β和麦当劳（Mcdonald）的ωH ：它们之间的关系以及两种替代的可靠性概念

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摘要

We make theoretical comparisons among five coefficients—Cronbach’s α, Revelle’s β, McDonald’s ω h , and two alternative conceptualizations of reliability. Though many end users and psychometricians alike may not distinguish among these five coefficients, we demonstrate formally their nonequivalence. Specifically, whereas there are conditions under which α, β, and ω h are equivalent to each other and to one of the two conceptualizations of reliability considered here, we show that equality with this conceptualization of reliability and between α and ω h holds only under a highly restrictive set of conditions and that the conditions under which β equals ω h are only somewhat more general. The nonequivalence of α, β, and ω h suggests that important information about the psychometric properties of a scale may be missing when scale developers and users only report α as is almost always the case
机译：我们在五个系数之间进行了理论比较-克伦巴赫（Cronbach'sα），雷维尔（Revelle）β，麦当劳（McDonald）ωh 和可靠性的两种替代概念。尽管许多最终用户和心理测量师都可能无法区分这五个系数，但我们正式证明了它们的不等价性。具体而言，尽管在某些情况下α，β和ωh 彼此相等，并且与此处考虑的两种可靠性概念之一相等，但我们证明与这种可靠性概念相同并且在α和ω之间h 仅在一组严格的条件下成立，并且β等于ωh 的条件仅在某种程度上更为笼统。 α，β和ωh的不等价表明，当秤开发者和用户仅报告α时，可能会丢失有关秤的心理测量特性的重要信息，几乎总是如此

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  • 来源
    《Psychometrika》 |2005年第1期|123-133|共11页
  • 作者

    Richard E. Zinbarg; William Revelle; Iftah Yovel; Wen Li;

  • 作者单位

    Northwestern University the Family Institute at Northwestern UniversityNorthwestern University;

    Northwestern University;

    Northwestern University;

    Northwestern University;

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  • 正文语种 eng
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